Answer:
The whole plot of The Secret Life of Walter Mitty is that the main character has weird flashbacks to past events or dreams. The reader or viewer is never sure whether the scene is real or imagined due to the spontaneity of these reflections/flashbacks. It makes for an interesting movie and an interesting story when these responses are elaborately fantasized, as Thurber did.
D. looks
This is because the author makes use of Miss Minchin's physical attributes to convey a message of repulsion to the readers.
He read his textbooks carefully and made concept maps to help him remember the details. The dates were giving him trouble, though, so he tried to memorize them by reading them aloud and then saying them without looking in the book. He also made a time line and flashcards to help him remember important facts.
